{"product_id":"victron-cyr010120011-cyrix-ct-12-24v-120a-battery-combiner","title":"Victron CYR010120011 Cyrix-ct 12\/24V 120A Intelligent Battery Combiner","description":"\u003ch2 class=\"text-text-100 mt-3 -mb-1 text-[1.125rem] font-bold\"\u003e\u003cstrong\u003eIntelligent 120A Battery Combiner for Dual Battery Systems Trend-Based Switching, No Voltage Loss, 12\/24V Auto-Ranging.\u003c\/strong\u003e\u003c\/h2\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eProduct Overview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Victron Cyrix-ct 12\/24V-120A (CYR010120011) is an intelligent battery combiner designed to replace traditional diode isolators and basic voltage-controlled relays in dual battery systems. Unlike simple voltage-threshold combiners that connect and disconnect on a fixed time delay, the Cyrix-ct monitors the battery voltage trend whether voltage is rising or falling and only reverses a previous connect or disconnect decision once that trend has genuinely reversed over a sustained period. This prevents unnecessary disconnections during momentary high-current loads and ensures a large, deeply discharged battery bank is not incorrectly rejected when first connected.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe Cyrix-ct operates with virtually no voltage loss unlike diode isolators which cause a 0.6V to 0.8V drop that must be compensated for making it a direct, drop-in alternative without requiring alternator output voltage adjustment. Automatic 12\/24V ranging, overtemperature protection, bidirectional voltage sensing, and a push-button start assist for emergency parallel connection round out a combiner engineered for the reliability demands of marine, 4WD, and commercial vehicle dual battery installations.\u003c\/p\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eKey Specifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eContinuous current rating: 120A\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVoltage: 12V \/ 24V (auto-ranging — automatic system voltage detection)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eSwitching logic: Intelligent trend-based (not fixed threshold\/fixed delay)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVoltage loss: Virtually none (replaces diode isolators without voltage compensation)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBolt size: M6 (13mm long — suits single or multiple cable connections per terminal)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOvertemperature protection: Yes — disengages on excessive contact temperature, re-engages after cooling\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eBidirectional voltage sensing: Yes — senses both connected batteries\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDual power supply: Yes — closes even if one battery voltage is too low to operate the Cyrix alone\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eLow voltage lockout: Will not close if either battery is below 2V (12V system) or 4V (24V system)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eStart assist (manual parallel): Yes — push button (30 seconds) or switch\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eLED status indication: Not on this model (120A) — LED available on 230A model only\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eOperating temperature: Not specified — confirm with Victron\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eDimensions: Not specified — confirm with Victron\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWeight: Not specified — confirm with Victron\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eWarranty: Not specified — confirm with Victron\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFeatures \u0026amp; Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eIntelligent Trend-Based Switching\u003c\/strong\u003e — Rather than connecting and disconnecting on a fixed voltage threshold and time delay, the Cyrix-ct monitors the direction of voltage change over time. It will only reverse a previous action if the trend has genuinely changed for a sustained period. The time delay before action is proportional to the magnitude of the voltage deviation — preventing nuisance disconnections during momentary high-current loads (engine cranking, winch operation) and ensuring a large discharged auxiliary battery is connected correctly rather than rejected.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eNo Voltage Loss — Direct Diode Isolator Replacement\u003c\/strong\u003e — Traditional diode isolators cause a 0.6V to 0.8V drop across the device, requiring alternator output voltage to be increased to compensate. The Cyrix-ct has virtually no voltage loss — making it a direct replacement for diode isolators without any need to adjust alternator or charger voltage settings.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eBidirectional Voltage Sensing\u003c\/strong\u003e — The Cyrix-ct monitors the voltage of both connected batteries simultaneously. It will engage regardless of which battery is being charged — whether the alternator is charging the starter battery or an auxiliary charger is charging the accessory battery. Either charging event will trigger the combiner to connect the batteries in parallel.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eDual Power Supply\u003c\/strong\u003e — The Cyrix-ct can draw its operating power from either connected battery. This means the unit will still close correctly even if one battery's voltage is too low to operate the combiner on its own — a practical advantage when recovering deeply discharged batteries.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eLow Voltage Lockout — Safety During Installation\u003c\/strong\u003e — The Cyrix-ct will not close if either battery connection reads below 2V (12V system) or 4V (24V system). This prevents unexpected and potentially dangerous parallel connection during installation or when one battery has been physically disconnected.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eOvertemperature Protection\u003c\/strong\u003e — If sustained overload causes the contact temperature to exceed safe limits, the Cyrix-ct disengages automatically. Once the unit cools down, it re-engages — protecting both the combiner and the batteries from thermal damage without requiring manual reset.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eStart Assist — Emergency Parallel Connection\u003c\/strong\u003e — A push button or switch input can be used to manually force the Cyrix-ct closed, connecting both batteries in parallel for 30 seconds. Essential for emergency jump-starting from the auxiliary battery when the starter battery is discharged or damaged — without requiring additional wiring or jumper cables.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003e12\/24V Auto-Ranging\u003c\/strong\u003e — Automatically detects the system voltage on startup — no manual voltage configuration required. A single SKU covers both 12V and 24V installations.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003eM6 Long Bolts (13mm)\u003c\/strong\u003e — The extended M6 bolts allow multiple power cables to be stacked on a single terminal, accommodating parallel cable runs and more complex wiring configurations without additional hardware.\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e\n\u003cstrong\u003ePrioritises the Starter Battery\u003c\/strong\u003e — In the standard dual battery setup, the alternator charges the starter battery first. When the starter battery reaches the connect voltage, the Cyrix-ct engages to allow the auxiliary battery (and any additional batteries) to charge in parallel. The starter battery is not disadvantaged by the auxiliary battery drawing from the alternator output.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eTechnical Specs\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cdiv class=\"overflow-x-auto w-full px-2 mb-6\"\u003e\n\u003ctable class=\"min-w-full border-collapse text-sm leading-[1.7] whitespace-normal\"\u003e\n\u003cthead class=\"text-left\"\u003e\n\u003ctr\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eSpecification\u003c\/th\u003e\n\u003cth class=\"text-text-100 border-b-0.5 border-border-300\/60 py-2 pr-4 align-top font-bold\" scope=\"col\"\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBrand\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eVictron Energy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003ePart Number\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCYR010120011\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eModel\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eCyrix-ct 12\/24V-120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eContinuous Current\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e120A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eVoltage\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e12V \/ 24V (auto-ranging)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eSwitching Logic\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eIntelligent trend-based monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eVoltage Loss\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eVirtually none\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBolt Size\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eM6 (13mm long)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOvertemperature Protection\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes — auto disengage and re-engage\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eBidirectional Voltage Sensing\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDual Power Supply\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eLow Voltage Lockout\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003e\u0026lt;2V (12V system) \/ \u0026lt;4V (24V system)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eStart Assist\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eYes — push button (30s) or switch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eLED Status Indication\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNo (available on 230A model only)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eDimensions\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eWeight\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eWarranty\u003c\/td\u003e\n\u003ctd class=\"border-b-0.5 border-border-300\/30 py-2 pr-4 align-top\"\u003eNot specified — confirm with Victron\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eCompatible With \/ Goes Well With\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eSuitable applications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003e4WD and caravan dual battery systems — alternator-based auxiliary battery charging\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMarine vessel dual battery and bow thruster battery management\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eMotorhome and RV dual battery systems\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eCommercial vehicle and truck secondary battery charging\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAny application where a diode isolator is currently installed and a lossless alternative is desired\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003eTypical wiring configuration:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAlternator → Starter battery (direct connection)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eStarter battery → Cyrix-ct 120A → Auxiliary \/ accessory battery\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eAdditional batteries each connected via separate Cyrix units in parallel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003e\u003cstrong\u003ePairs well with:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3\"\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVictron Energy SmartShunt 300A (for auxiliary battery monitoring)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVictron Energy Blue Smart IP65\/IP67 battery chargers (for shore power charging)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVictron Energy Battery Protect 12\/24V-65A (for load protection on auxiliary battery)\u003c\/li\u003e\n\u003cli class=\"whitespace-normal break-words pl-2\"\u003eVictron Energy Orion-Tr DC-DC converters (for regulated isolated battery-to-battery charging)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr class=\"border-border-200 border-t-0.5 my-3 mx-1.5\"\u003e\n\u003ch3 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003e\u003cstrong\u003eFrequently Asked Questions\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eHow is the Cyrix-ct different from a standard voltage-controlled relay or split charge relay?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA basic relay connects and disconnects on a fixed voltage threshold with a fixed time delay. The Cyrix-ct monitors the voltage trend — rising or decreasing — over time and only acts once a genuine trend change is confirmed. This prevents nuisance disconnections from momentary voltage dips during high-current loads, and correctly handles the voltage drop that occurs when connecting a large discharged battery.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eDoes the Cyrix-ct cause a voltage drop like a diode isolator?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eNo. The Cyrix-ct has virtually no voltage loss — making it a direct replacement for diode isolators without needing to increase alternator or charger output voltage to compensate. This is one of its primary advantages over diode-based isolation.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eWhat does the start assist function do?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eA connected push button or switch can force the Cyrix-ct to close, connecting both batteries in parallel for 30 seconds. This allows the auxiliary battery to assist with starting if the starter battery is discharged or damaged — an emergency jump-start capability without jumper cables.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eIs the Cyrix-ct suitable for a system with solar charging on the auxiliary battery?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eYes. The Cyrix-ct senses voltage from both connected batteries. If a solar charger raises the auxiliary battery voltage to the connect threshold, the Cyrix-ct will engage and allow the starter battery to benefit from the solar charge. Bidirectional sensing means either battery being charged will trigger the parallel connection.\u003c\/p\u003e\n\u003ch4 class=\"text-text-100 mt-2 -mb-1 text-base font-bold\"\u003eWhat is the difference between the Cyrix-ct 120A and the 230A model?\u003c\/h4\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal leading-[1.7]\"\u003eThe primary practical difference is current rating — 120A vs 230A continuous. The 230A model also adds LED status indication (on\/off\/connecting\/disconnecting\/alarm states) which is absent on the 120A model. For systems with multiple engage\/disengage profiles, the Cyrix-i 400 is the appropriate choice.\u003c\/p\u003e","brand":"Victron Energy","offers":[{"title":"Default Title","offer_id":44409967476829,"sku":"CYR010120011","price":92.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0640\/9528\/9437\/files\/24V-120A-4-500x500.jpg?v=1777502069","url":"https:\/\/frankiesautoelectrics.com.au\/products\/victron-cyr010120011-cyrix-ct-12-24v-120a-battery-combiner","provider":"Frankies Auto Electrics","version":"1.0","type":"link"}